Chair for practicing electrolysis



Feb. 18, 1930., x,`R QLIVER CHAIR FOR PRACTICING ELEcTRoLYsIs Filed June 2l. 1928 atroz nu# Patented Feb. 18,r 1930 UNITED STATES XoRoLR. OLIVER, or OAKLANDQCALIFORNIA CHAIR FOR PRACTICING ELECTROLYSIS kApplication filed .Tune 21, 1928. Serial No. 287,300.

This invention relates to surgical chairs and `particularly to chairs designed to be used in the' operation of electrolysis, that is the removal of superfluous hair. f Y,

The chairs ordinarily used by practitioners of electrolysis comprise a seat and an adjustable backmade up of a plurality of sections adjustable Vwith referenceto each other so that the back may be inclined with relation to the seat and the sections of the back be independentlyadjustable. The chair, however, is not properly adjustable for long-or short patients for the reason that when the back'fis inclined at an acute angle, which is the proper'position for operating and the mostcomfortable position for the patient, the seat if moved upward separates from the back and leaves a gap which has to be filled in with cushions, if filled in at all, and if the seat is not raised vertically, then the chair is too long for short patients. f

A further 'difculty in chairs of this character is thatthe side of the backland the side of the seat constitute a straight line and the Q5-practitioner, in order to operate, must flex herback and shoulders-in order to lean over a patient while sitting beside the chai-rand not only is this an extremely uncomfortable and tiring position for the operator, but the straightl edge of thevback and the seatfbears against thehip of the operator, and this pressure. also soon becomes veryuncomfortable. The constant-practicing of this profession with a chair of this character tends toltwistv the ypractitioner to some extent, giving a permanent flex kto the spineand tends to causey one shoulder to be permanently raised with relation to the other shoulder. .j 40 Another difficulty with@ chairs of this charadjustable andas a consequence the `patient cannot move4 the arms into a natural position acrossthe body, but must always hold the arms at right angles to the bodya positionwhich is not natural and is very tiring. Iliasmuch asa patient undergoing the operation of electrolysis must lie as quiet. as possible Vand move'faszlittle as possible it follows that anythingwhich would tend t0 render. the

- patient more comfortable tends to makethe` acter is that the arms are-not transversely prevent the pulling out-of the needles as explained in myy copending application ASerial 1 N o. 287,299 filed J une 21, 1928, on anelectrid depilator.` ,v One ofthe objects of this present invention 1s toprovide, incconnection with an operating 'chair' having an angularly adjustable 'back 65' formed ofindependently adjustable sections, a seat which is movable independently of the back or any adjustment thereof.

Another object is to so arrange the'seat that as the seat moves upward it will swing rearward, thus as the seat is adjusted for a relatively short person, the seat will automatically close any gap between theseat and. the back. i j

Another object isto so form the back and seat adjacent their junction as vto accommodate the body of the operator so thatthe operator may sit in close to the patient and operate without strain orv fatigue, `and another-object is to so construct the arms of thelchair that they maybe swung into a position Where they will support the arms of the patient when the latter arein their normal and easy position.y

Myinvention is illustratedin the accom- 85.- panying drawings whereinf Fig. 1 is a side elevationshowing a chair constructed in accordance with my invention, the chair being stripped of unessential features to show the vprincipleofy the device.

Fig. 2 is atop plan View ofthe construction'shown in Fig.`1; Y

F ig.3 is an enlarged' View of the means illustrated foradjusting theback; j l

Fig. 4 is anenlarged top plan view showing the means illustrated for adjusting the sections of the back relative to each other;V and n y Fig. 5

is fragmentary'` elevation of ,the 1 09 seat of the chair showing one of the adjustable arms.

It is to be understood that in the drawings herewith, I have merely illustrated the essen- `tial features of an opera-ting chair and that the actual construction may be modified and changed in many ways without departing from the principle shown in these drawings.

In the drawings theback 10 is formed with a plurality of sections designated respectively 11, 12 and 13. The section 11 is for the support of the lower portion of the back, the section 12 for the support of the upper portion of the back, and the section 13 acting as a head rest. The sections 11, 12 and 13 are illustrated as being supported by irons 15, and as shown in Fig. 4; these irons are overlapped and their confronting faces are radially Vtoothed or corrugated 'as at 16.

`These faces are held in close engagement with ing teeth 2O and coacting with a locking pawl 21 having a handle 22 and held against the teeth by a Spring 23; f

j It is obvious that with this mechanism the back `may at any time lbe raised and may be held inrthis position by' the locking pawl 21 and that by releasing the locking pawl'the back may be lowered. It is again reiterated that any other suitablemechanism may be used for securing-the adjustment of the back and its sections and that myinvention does not lie in any peculiar means for this purpose, but in the combination `of such an adjustable back with the'seat now to be described.

The seat 24 is shown as pivotally connected to supporting links 25 whichare pivoted at their lower ends to any supporting base or plate 26. Obviously with this construction, as these supporting links ork legs are swung forward they seat will be swung rearward toward fthe back, and thus as the back is moved into a properly inclined position the seat vmay becaused to follow the back. I

, do not wish to be limited to any particular means for raising `or lowering the seat, but

preferably use pneumatic means for this purpose and haveillustrated therefore a cylinder27 having therein apiston 28 whose piston rod is engaged with any suitable portion ofthe seat, but as shown is engaged with a Y Vbar 29 connected to the legs 25. The pump is-(bsigned to be disposed in any convenient relation to the chair and to be operated by a handle 80. lInasmuch as this means for raising or lowering the chair is old and well known by itself, I have'not illustrated it in detail, but only diagrammatieally.

The seat 24 is provided with a foot-rest 31 mountedr upon supporting bars 32 which are operatively engaged with the underside of the seat for sliding movement either forward or rearward to adjust it to the foot-rest. The seat is likewise provided with the arm rests 33. These, as illustrated, are mounted upon vertical posts 34 extending upward from the seat, so that the arm rests will move upward with the seat, or downward therewith. The arm rests 38 are rotatably'mounted upon the upper ends of thel posts 34 so that the arm rests may be swung to the position shownl in dotted lines in` Fig. '2' or into a position shown at right angles to the back ofthe seat as desired. f Y

For the purpose of permitting the operator to assume yav correct position-'with krelation to the patient as ybefore explainedjthe back section 11 iscut away at 35 to any desired depth and with any-desireddegree of curvature .and Athe vseat '24 is llikewise cut away at 36, the edge of this eut away portion being preferably slightly convexly rounded. Thus the practitioner will not be impeded in her work, she will not'have t0- haveqto flex her body in orderto properly operate nor will Vher hip bear constantly againstthe seat, asis the case where theside.` edge of the seat extends parallel to the length` of the back.

4while i have illustrated Certain details of construction itis to be understood, as before i stated,- that these might be modified in many r ways without departing vfrom thel spirit of the invention as defined `the Vappended claims. Y f

Icla'iIn---V l v 1.- A chairof the character described including a back and a. seat, the back being pivotally mounted at its lower end for, angular adjustment'and being composed-of sections,v each sectiony being adjustable 4into Vangular relation to thenext ladjacentl section, the seat being independent ofthe back and ymounted for vertical and rearward 'move-f ment or vertical and downward movement, .l and manually operable means fdr adjusting they seat to a plurality of positions and holding it in4 its adjusted position.

2. A chair `ofthe character described coin- Vprising a7 base, aI back operatively supported upongthe base for tilting movement, a seat operativelysupp'ortd upon the base fori-ear.V

ward and forward movement and` simultaneous movement ina vertical plane, the seat being'independently adjustable with relation to ,the vbacln the seat and 'back `at'their junction being cut away on oney side'tov accommodate the body of an operator.

les

. iet s 3. A. chair of the charac-ter described, including a back and a seat, the back being pivotally mounted for angular adjustment and being Composed of sections each angularly adjustable with relation to adjacent seotions, the seat being independent of the back and mounted for Vertical and forward movement whereby the seat may be shifted toward the back as the seat is raised, manually operable means or adjusting the seatv into a plurality of positions and holding it in its adjustable positions, and arm rests mounted upon the seat and moving therewith, the arm rests being mounted for swingingvmovement in a horizontal plane.

In testimony whereof Iv hereunto aix my signature.

XOROL R. OLIVER. 

